OCR C1 2011 January — Question 1

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2011
SessionJanuary
TopicStraight Lines & Coordinate Geometry
1 The points \(A\) and \(B\) have coordinates \(( 6,1 )\) and \(( - 2,7 )\) respectively.
  1. Find the length of \(A B\).
  2. Find the gradient of the line \(A B\).
  3. Determine whether the line \(4 x - 3 y - 10 = 0\) is perpendicular to \(A B\).
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